I do a lot of turbo stuff so no 18 gauge for me. As a matter of fact, most of what I use is 14 gauge. I think it TIG welds better too, just a bit slower.
After Mig tacking everything and removing to finish Tig, I clean the whole pipe and send it out for Ceramic coating to keep the heat in and improve the flow too.
Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)
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